Anyone try Thompson powerblast plate

Fuel and Air Systems

  1. Johnny Mac

    Johnny Mac www.blueprintengines.com FABO Vendor

    Messages:
    3,302
    Likes Received:
    2246
    Joined:
    Jul 10, 2010
    Location:
    OHIO
    Local Time:
    9:08 AM
    Ok, so here is my Zero Skin in the game update.

    @kursplat did shoot these over to me to take a look at, and bolt on my carb. took them to the track with me to throw on at the end of the night, and make a test run, and ran into an issue.

    The holes in these do not cleanly line up with my carburetor squirters (which is a 4150 based proform)
    fuel actually mists up and out of the carburetor when it contacts these "plates". if i press on the gas, the car runs notably rougher, as i would expect given what i'm seeing as fuel misting up and out (assuming to some kind of misalignment)

    called them several times with no answer, shot an email over also.

    so just a clean statement of fact, with MY carb, they don't seem to fit well enough to give an actual test. Now clearly there are a bunch of guys on youtube with them on and running (and prettily misting as advertised) , so not sure what i'm running into. Only thing i can report is they did not simply bolt on and work like magic. I'll report with what they say via email.
     
    • Thanks! Thanks! x 3
    • yellow rose

      yellow rose Doctor of Thinkology.

      Messages:
      20,002
      Likes Received:
      16103
      Joined:
      Jun 19, 2015
      Location:
      Living on the razors edge
      Local Time:
      6:08 AM

      Well that's a bummer. What's worse is they haven't gotten back to you about why they don't fit.
       
    • Johnny Mac

      Johnny Mac www.blueprintengines.com FABO Vendor

      Messages:
      3,302
      Likes Received:
      2246
      Joined:
      Jul 10, 2010
      Location:
      OHIO
      Local Time:
      9:08 AM
      did speak with them on the phone. Very Nice and helpful. trying some alignment tricks. In their defense, they are in CA, so a few hr time difference.
      In short, the Proform squirter holes do not appear to be on the perfect 45 degree angle they are supposed to be. (Casting flaw) it was suggested i try some different squirters, or if i dind't want to, they would gladly take them back. I popped on some from an AED i had laying around, and the holes do line up much better. so that was on My equipment. not their product. So Installed now. a few throttle cracks. They do LOOK pretty. i admit i do see the fuel spraying nicely. we'll see what that translates to when i can get back to the track. the only thin i don't "care for" is i have a progressive linkage on my secondary, and it doesn't spray as "pretty" but i imagine thats the same regardless of if they are there or not.
       
      • Thanks! Thanks! x 2
      • Like Like x 1
      • kursplat

        kursplat FABO Gold Member FABO Gold Member

        Messages:
        2,115
        Likes Received:
        1274
        Joined:
        Aug 24, 2010
        Location:
        so cal
        Local Time:
        6:08 AM
        thanks JM. i don't know how late in the year you manage to get track time in, but there's something to be said for a good cliff hanger at the end of the season :thumbsup:
         
        • Like Like x 1
        • famous bob

          famous bob mopar misfit FABO Gold Member

          Messages:
          14,942
          Likes Received:
          5246
          Joined:
          Aug 14, 2011
          Location:
          okla
          Local Time:
          8:08 AM
          Well tell us what it was !! Inquiring minds want to know !!!---lol
           
        • Johnny Mac

          Johnny Mac www.blueprintengines.com FABO Vendor

          Messages:
          3,302
          Likes Received:
          2246
          Joined:
          Jul 10, 2010
          Location:
          OHIO
          Local Time:
          9:08 AM
          Its some tiny little filter with a green foam element. not a fiber element. Its supposed to mimic what an old FE ford would have had in a cobra. We simply swapped to a KNN element in the same housing, and dumped the lawnmower foam. Literally 50 numbers.
          upload_2019-10-9_13-45-1.png
           
        • cpearce

          cpearce Well-Known Member

          Messages:
          766
          Likes Received:
          325
          Joined:
          Sep 1, 2010
          Location:
          Edson
          Local Time:
          8:08 AM
          Following this one.
           
        • kursplat

          kursplat FABO Gold Member FABO Gold Member

          Messages:
          2,115
          Likes Received:
          1274
          Joined:
          Aug 24, 2010
          Location:
          so cal
          Local Time:
          6:08 AM
          ahh. like a Uni
           
        • Johnny Mac

          Johnny Mac www.blueprintengines.com FABO Vendor

          Messages:
          3,302
          Likes Received:
          2246
          Joined:
          Jul 10, 2010
          Location:
          OHIO
          Local Time:
          9:08 AM
          Ok! back to the original thread, and my recap from the beginning.

          Went to test fit them, and discovered my offshore squirters were actually out of spec. Meaning the fuel shot from my squirters was hitting the boosters at differing angles. w/o the plates, it wouldn't matter. With the plates, it has to be lined up properly. Thompson was prompt in getting back to me, and advised to try actual holley brand squirters. I dug out an old parts carb with similar sized holley brand squirterts, and boom, went on perfect. misted the fuel down and pretty like its supposed to. From all the data i can gather in my garage, in park (not a ton)... they don't seem to hurt anything at all. We'll see what they do on the track next year. I don't have any major performance modifications in store this winter, beyond a radiator, so I'd say if i run my best ET ever early in the season, they are doing something. To test that theory, i'll pop them back off at some point and see if it responds negatively. I do recommend going 1:1 linkage on a double pumper. I do not like how the fuel trickles down the secondary plate with a progressive linkage. Thats just my opinion, and I have zero backing to indicate if its any different whatsoever from a normal secondary booster/squirter. on a 4160 this obviously wouldn't be an issue. you just need the quick/fuel pump shot from the 1:1 on a 4150 to fully "mist" the secondary shot off the power plate. that was my solution vs changing pump cams to hit "harder"

          here is a video for the patient followers! this is 1:1 linkage. with holley branded squirters, waiting for the track next year.

           
          • Thanks! Thanks! x 3
          • Like Like x 1
          • MobileCustoms

            MobileCustoms Well-Known Member

            Messages:
            1,698
            Likes Received:
            1534
            Joined:
            Oct 21, 2013
            Location:
            Inver Grove Heights, MN
            Local Time:
            8:08 AM
            Well, it LOOKS good!
             
            • Agree Agree x 1
            • Johnny Mac

              Johnny Mac www.blueprintengines.com FABO Vendor

              Messages:
              3,302
              Likes Received:
              2246
              Joined:
              Jul 10, 2010
              Location:
              OHIO
              Local Time:
              9:08 AM
              it does in fact look pretty.lol hopefully the 60' likes it!
               
              • Like Like x 2
              • DartGTDan

                DartGTDan 70-71 Dart GT Fan

                Messages:
                1,006
                Likes Received:
                774
                Joined:
                May 29, 2004
                Location:
                Detroit Metropolitan Area
                Local Time:
                9:08 AM
                Updated video location from post #38

                 
                • Like Like x 1
                • Johnny Mac

                  Johnny Mac www.blueprintengines.com FABO Vendor

                  Messages:
                  3,302
                  Likes Received:
                  2246
                  Joined:
                  Jul 10, 2010
                  Location:
                  OHIO
                  Local Time:
                  9:08 AM
                  Driving around and doing some throttle hits on the street is about the least definitive test I could imagine using to validate a product or modification.
                   
                  • Agree Agree x 2
                  • Thanks! Thanks! x 1
                  • yellow rose

                    yellow rose Doctor of Thinkology.

                    Messages:
                    20,002
                    Likes Received:
                    16103
                    Joined:
                    Jun 19, 2015
                    Location:
                    Living on the razors edge
                    Local Time:
                    6:08 AM

                    Unless you think the accuracy of the ass dyno is 100%!!!
                     
                    • Like Like x 1
                    • rumblefish360

                      rumblefish360 So close, yet so far away

                      Messages:
                      36,955
                      Likes Received:
                      8787
                      Joined:
                      Jun 21, 2005
                      Location:
                      New York, on a Island
                      Local Time:
                      9:08 AM
                      Only if it is connected to a 100% Ass.
                      :rofl:
                       
                    • DartGTDan

                      DartGTDan 70-71 Dart GT Fan

                      Messages:
                      1,006
                      Likes Received:
                      774
                      Joined:
                      May 29, 2004
                      Location:
                      Detroit Metropolitan Area
                      Local Time:
                      9:08 AM
                      The OP asked "Anyone have any testimonies" so I shared the opinions of some friends.

                      I'm sure everybody has used the butt dyno at some point to validate a modification they've made.
                       
                      • Like Like x 1
                      • pishta

                        pishta I know I'm right....

                        Messages:
                        16,201
                        Likes Received:
                        5922
                        Joined:
                        Oct 13, 2004
                        Location:
                        Tustin, CA
                        Local Time:
                        6:08 AM
                        Even a nasty pee stream of fuel is instantly atomized in an intake, right? I mean there is a lot of velocity at wot right? Why not just put a mister cap from a bottle of Windex on the squirter if that is what they are after. No impeding of the air flow...?
                         
                      • Johnny Mac

                        Johnny Mac www.blueprintengines.com FABO Vendor

                        Messages:
                        3,302
                        Likes Received:
                        2246
                        Joined:
                        Jul 10, 2010
                        Location:
                        OHIO
                        Local Time:
                        9:08 AM
                        After I painted my car green, its definitely faster than it was when it was tan.
                         
                      • rumblefish360

                        rumblefish360 So close, yet so far away

                        Messages:
                        36,955
                        Likes Received:
                        8787
                        Joined:
                        Jun 21, 2005
                        Location:
                        New York, on a Island
                        Local Time:
                        9:08 AM
                        But to what degree. WOT doesn’t like a fine mist fuel charge.
                        Ehhhh, not really or exactly. WOT @ what RPM?
                        Like an overhead, ummm, errr, I mean, an over carb misting jet?
                         
                      • rumblefish360

                        rumblefish360 So close, yet so far away

                        Messages:
                        36,955
                        Likes Received:
                        8787
                        Joined:
                        Jun 21, 2005
                        Location:
                        New York, on a Island
                        Local Time:
                        9:08 AM
                        :rofl:

                        That’s be wise the fresh paint is smooth and waxed...:lol:
                         
                      • Johnny Mac

                        Johnny Mac www.blueprintengines.com FABO Vendor

                        Messages:
                        3,302
                        Likes Received:
                        2246
                        Joined:
                        Jul 10, 2010
                        Location:
                        OHIO
                        Local Time:
                        9:08 AM
                        I didn't mean any shots at you. sorry if i seemed a bit snippy. I'm no more use than anyone else at this point as i haven't tracked it yet.

                        I 100% get the thought process. Atomize fuel better....get a better burn...make more power.

                        question is... does a finely tuned carburetor benefit any better from a mixture that atomizes earlier in the process? or would the fuel be equally atomized from bouncing off the rough intake, the throttle blades, etc. by the time it hits the combustion chamber.

                        I'm speculating that on a combo that isn't PERFECT, these probably do 100% help, as everyone tends to go a little big on their carb...and this probably helps atomize that extra fuel. i'm probably in this boat on my drag car as well.

                        again i'm 1000% optimistic they will do something on the track, but w/o throwing any stones, i also 1000% see the science of why they would work in a car with a carb thats a little too big, moreso than one with the perfect setup thats been wideband tuned.

                        maybe they work on both? Idk? i'll have a report come april. until them i'm just one more joker that thinks they look pretty, and probably wouldn't bother taking them off even if they do much at the track.
                         
                      • pishta

                        pishta I know I'm right....

                        Messages:
                        16,201
                        Likes Received:
                        5922
                        Joined:
                        Oct 13, 2004
                        Location:
                        Tustin, CA
                        Local Time:
                        6:08 AM
                         
                      • pishta

                        pishta I know I'm right....

                        Messages:
                        16,201
                        Likes Received:
                        5922
                        Joined:
                        Oct 13, 2004
                        Location:
                        Tustin, CA
                        Local Time:
                        6:08 AM
                        why wouldn't it like an atomized (fine mist) fuel charge? More surface area, more complete combustion? MPFI...

                        WOT where its still using the pump shot is probably not that high, grant you that, but is it still hitting the side of the booster that has a high velocity around it?

                        over carb misting jet sounds like any TBI....All in the name of emissions and a more complete combustion creates more power per lb of fuel.
                         
                      • rumblefish360

                        rumblefish360 So close, yet so far away

                        Messages:
                        36,955
                        Likes Received:
                        8787
                        Joined:
                        Jun 21, 2005
                        Location:
                        New York, on a Island
                        Local Time:
                        9:08 AM
                        You make a sound argument with a scientific notation that just doesn’t pan out in real world applications. Hey did some reading on the subject and I can not remember it all to explain it but in a nutshell, it just doesn’t pan out that way.

                        MPFI is awesome but overall it still makes less top end power than a carb.

                        Higher velocity when in the rpm range. It is a constant changing variable. If you have enough pump shot for low rpm take offs, then the same amount higher in the rpm range is more than enough if not to much. You only need enough not to stumble while maintaining the desired fuel ratio.
                        The amount of pump shot injected/used is also a variable between manuals and automatic as well as completely adjustable in a Holley. Lesser on the Carter. It still may need adjusting.

                        The higher velocity around the booster is always there. It’s always higher than the rest of the Venturi. But that doesn’t mean it is high enough to gobble up and atomize the whole or part pump shot. The velocity may still be slow to do so atomize it all.

                        At low to mid rpm’s. Excellent for mileage and drivability and emissions. Not all out power potential.

                        Carburetor powered cars still maintain the highest hp output period.
                         
                        • Like Like x 1
                        • Cope

                          Cope Fusing with fire

                          Messages:
                          3,869
                          Likes Received:
                          4465
                          Joined:
                          Oct 20, 2009
                          Location:
                          San Jose, Ca.
                          Local Time:
                          8:08 AM
                          Garbage, in my opinion.

                          Get your pump diaphragm and nozzle correct for your build.

                          Its realy that simple.
                           
                        1. This site uses cookies to help personalize content, tailor your experience and to keep you logged in if you register.
                          By continuing to use this site, you are consenting to our use of cookies.